Meanings
nounornithischian (plural ornithischians)
plural ornithischians
- Any of the order Ornithischia of typically herbivorous dinosaurs that have a pelvic structure similar to that of birds.
Synonyms: bird-hipped dinosaur
Synonyms & antonyms
nounAny of the order Ornithischia of typically herbivorous dinosaurs that have a pelvic structure similar to that of birds.
Similar
bird-hipped dinosaur
More synonyms by meaning
nounherbivorous dinosaur with a pelvis like that of a bird
Similar
ornithischian dinosaur
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From the taxonomic name Ornithischia + -an.
Full word history & related roots →Cite this entry
APA
ornithischian. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/ornithischian
MLA
“ornithischian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ornithischian. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “ornithischian,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/ornithischian.
Source: ornithischian on Wiktionary, CC BY-SA 4.0.